logging.conf example

# https://docs.python.org/3.6/library/logging.config.html
#
# Level               Numeric value
# CRITICAL      50
# ERROR         40
# WARNING       30
# INFO          20
# DEBUG         10
# NOTSET        0
# higher level - less logs

[loggers]
keys=root

[handlers]
keys=consoleHandler

[logger_root]
level=DEBUG
handlers=consoleHandler

[handler_consoleHandler]
class=StreamHandler
level=DEBUG
formatter=consoleFormatter
args=(sys.stdout,)

[formatter_consoleFormatter]
class=ice_yml_log_formatter.YAMLLogFormatter
format=[%(levelname)s] %(name)s: %(msg)s
datefmt=

simple usage example

import os
import logging.config
import logging

logging.config.fileConfig('./logging.conf')

#....
#....
# in your ice servant method
try:
  raise Exception('Any cause')
except:
  logging.exception('Oops!',
                    extra={
                      'ice_current': current,
                      'context': {
                        'any_info_key': 'any info value',
                      },
                    })

Use ice_current for ice request metatada print, and context for extra structured information.

log example

[DEBUG] services.fun - Dispatch
  iceIdentity: ZeroC/Fun
  iceOperation: something
  iceRequestId: 1

[ERROR] services.fun - Unexpected error
  iceIdentity: ZeroC/Fun
  iceOperation: something
  iceRequestId: 1
  context:
    any_info_key: any info value
  Error: Fun::ExampleException
    error_data:
      some_prop: 1
    stack_trace:
      File "path-to-source/fun.py", line 71, in wrapped
        return method(self, *args, **kwargs)

      File "path-to-source/fun.py", line 123, in something
        raise Fun.ExampleException(some_prop=1)